package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.entity.Category;
import com.itheima.reggie.entity.Employee;
import com.itheima.reggie.service.CategoryService;
import com.itheima.reggie.service.EmployService;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.web.servlet.ServletComponentScan;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.util.DigestUtils;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;
import java.time.LocalDateTime;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * 分类管理
 */
@Slf4j
@RestController
@RequestMapping("/category")
//@ServletComponentScan
public class CategoryController {
    @Autowired
    private CategoryService categoryService;

    /**
     *新增分类
     * @param category
     * @return
     */
    @PostMapping
    public R<String> save(HttpServletRequest request,@RequestBody Category category){
        log.info("category:{}",category);
        //公共字段自动填充
        boolean save = categoryService.save(category);

        if (save) {
            return R.success("新增成功");
        } else {
            return R.error("保存失败");
        }
    }

    /**
     * 分页查询
     * @param page
     * @param pageSize
     * @return
     */
    @GetMapping("/page")
    public R Page(Integer page,Integer pageSize){
        log.info("page = {},pageSize = {},name = {}", page, pageSize);
        //分页构造器
        Page<Category> pageInfo = new Page<>(page, pageSize);
        //条件构造器
        LambdaQueryWrapper<Category> lqw = new LambdaQueryWrapper<>();
        //添加排序条件，根据sort进行排序
        lqw.orderByAsc(Category::getSort);
        //执行查询
        categoryService.page(pageInfo, lqw);

        List records = pageInfo.getRecords();
        int total = (int) pageInfo.getTotal();

        //只返回前端需要的数据
        Map data = new HashMap();
        data.put("records", records);
        data.put("total", total);

        return R.success(data);
    }

    /**
     * 根据id删除分类
     * @param id
     * @return
     */
    @DeleteMapping
    public R<String> delete(Long id){
        log.info("删除分类，id为：{}",id);
        //categoryService.removeById(id);
        categoryService.remove(id);
        return  R.success("分类删除成功");
    }

    /**
     * 修改分类
     * @param category
     * @return
     */
    @PutMapping
    public  R update(@RequestBody Category category){
        log.info("修改分类信息：{}",category);
        categoryService.updateById(category);
        return R.success("修改分类信息成功");
    }

    /**
     * 根据条件查询分类数据
     * @param category
     * @return
     */
    @GetMapping("/list")
    public R<List<Category>> list(Category category){
        //条件构造器
        LambdaQueryWrapper<Category> lqw = new LambdaQueryWrapper<>();
        //添加条件
        lqw.eq(category.getType() != null,Category::getType,category.getType());
        //添加排序条件
        lqw.orderByAsc(Category::getType).orderByDesc(Category::getUpdateTime);
        List<Category> list = categoryService.list();
        return R.success(list);
    }
}
